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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDSD4600274
PWS NameRAPID VALLEY SANITARY DISTRICT
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served11408
County ServedPennington

Note


The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

PWS Violation


Violations

Violation Category CodeViolation Type DescriptionRule NameContaminant NameViolation IDCompliance Status DescriptionCompliance Period Begin DateCompliance Period End DateIs Health Based Ind
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)0800105Returned to Compliance01-NOV-200730-NOV-2007Yes
TTTreatment TechniquesSynthetic Organic ChemicalsEpichlorohydrin9500104Returned to Compliance01-JAN-199531-DEC-1995Yes
TTTreatment TechniquesSynthetic Organic ChemicalsAcrylamide9500103Returned to Compliance01-JAN-199531-DEC-1995Yes
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U9300101Returned to Compliance31-AUG-198830-AUG-1992No
MRMonitoring, RegularRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)9300102Returned to Compliance31-AUG-198830-AUG-1992No
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U8015777Known01-JUL-197630-JUN-1980No
MRMonitoring, RegularRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)8015778Known01-JUL-197630-JUN-1980No
  • 1 - 7 of 7

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
08000100800105SOXState Compliance achieved01-JUN-2008State -
95000079500103SOXState Compliance achieved25-APR-1997State -
95000079500104SOXState Compliance achieved25-APR-1997State -
93000039300101SOXState Compliance achieved26-JAN-1993State -
93000039300102SOXState Compliance achieved26-JAN-1993State -
  • 1 - 5 of 5

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CITY OF RAPID CITY004YesConsecutive ConnectionSurface waterEmergencyInactive
#2010YesWell Ground waterOtherInactive
#4006YesWell Ground waterOtherInactive
GALLERY002YesWell Ground water under the influence of surface waterOtherInactive
RAPID CREEK003YesIntakeSurface waterOtherInactive
NEW RAPID CREEK INTAKE013YesIntakeSurface waterPermanentActive
1 GS 1000000007NoStorage - - Active
1 SS 250000008NoStorage - - Active
1 GS 250000009NoStorage - - Active
1 GS 250000011NoStorage - - Active
1 GS 1.85 MG014NoStorage - - Active
NEW MICRO FILTRATION PLANT012NoTreatment Plant - - Active
TREAT SITE - #2001NoTreatment Plant - - Inactive
TREATMENT PLANT005NoTreatment Plant - - Inactive
  • 1 - 14 of 14

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREAT SITE - #2001Hypochlorination, PostDisinfection
TREATMENT PLANT005Gaseous Chlorination, PostDisinfection
TREATMENT PLANT005FluoridationOther
TREATMENT PLANT005PermanganateIron removal
TREATMENT PLANT005FilteredParticulate removal
TREATMENT PLANT005Rapid MixParticulate removal
TREATMENT PLANT005SedimentationParticulate removal
NEW MICRO FILTRATION PLANT012Hypochlorination, PostDisinfection
NEW MICRO FILTRATION PLANT012Ultraviolet RadiationDisinfection
NEW MICRO FILTRATION PLANT012FluoridationOther
NEW MICRO FILTRATION PLANT012CoagulationSoftening (hardness removal)
  • 1 - 11 of 11

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.